Ten lists and sat down for an interview during the week. June 9–10, 16 Letterman received criticism for jokes on the June 9 show about Alaska governor Sarah Palin and one of her daughters, in which Letterman joked, "One awkward moment for Sarah Palin at the Yankee game, during the seventh inning, her daughter was knocked up by Alex Rodriguez." Following controversy, Letterman addressed the situation on June 10 and 16, accepting full responsibility and apologizing directly to the Palin family. Palin issued a statement in which she accepted Letterman's apology while calling on such comedy to "evolve". Palin's spokeswoman later credited this incident as one of the reasons behind Palin's resignation as Alaska's Governor. Letterman's ratings were boosted in the weeks following the episode. July 15 Paul McCartney returned to the Ed Sullivan Theater 45 years after The Beatles made their U.S. television debut there on The Ed Sullivan Show. McCartney was interviewed by Letterman, then moved outside to do a concert from the theater's marquee for a crowd of about 4000 people. The episode attracted 4.4 million viewers, about six percent of the 73.3 million that McCartney and the rest of the Beatles attracted in 1964 but 75% more than the 2.5 million watching The Tonight Show with Conan O'Brien that same evening. Earlier that day, The Late Show received five Emmy nominations. September 21 President Barack Obama appeared on the Late Show, marking the first time that a sitting President of the United States appeared on the show, and only the second time a sitting president appeared on a late night talk show. In coming to the show, Obama had primarily proposed to defend and effectively communicate the widely disputed health care reform proposal in a light-hearted setting. He also discussed other topics of interest such as the Iraq War and objectives in Afghanistan. Obama had visited The Tonight Show with Jay Leno on March 19, 2009. This show also helped lead the Late Show with David Letterman to record ratings and big wins over rivals The Tonight Show with Conan O'Brien and Nightline. September 24 After Letterman finished his monologue, he announced that this was his 5000th episode on late night television. Letterman expressed how he couldn't be happier with his work and life. October 1 After his opening monologue, Letterman revealed to the audience that he was the victim of an extortion attempt and had